(19)

(11)

EP 4 525 944 A1

(12)

(43) Date of publication: 26.03.2025 Bulletin 2025/13 (21) Application number: 23725632.6 (22) Date of filing: 05.05.2023

(51) International Patent Classification (IPC):  A61M 1/16(2006.01) (52) Cooperative Patent Classification (CPC): A61M 1/1664; A61M 2205/3372; A61M 2205/3626 (86) International application number: PCT/EP2023/062009 (87) International publication number: WO 2023/222412 (23.11.2023 Gazette 2023/47)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA Designated Validation States: KH MA MD TN (30) Priority: 18.05.2022 SE 2250594 (71) Applicant: Gambro Lundia AB 226 43 Lund (SE)	(72) Inventor: HERTZ, Thomas 227 36 LUND (SE) (74) Representative: Sweden SHS IP Office  Gambro Lundia AB P.O. Box 10101 220 10 Lund 220 10 Lund (SE)